Florian Ricour (ECOMOD) Ludovic Lepers (MFC)
JupyterHub on ECMWF
tsh login --proxy=jump.ecmwf.int
ssh -X hpc-login
Artificial Intelligence, how smart is it?
Artificial intelligence
Artificial Neural Network (ANN)
Based on an artificial neuron called threshold logic unit (TLU)
\[ \text{heaviside}(z) = \begin{cases} 0 & \text{if } z < 0 \\ 1 & \text{if } z \geq 0 \end{cases} \]
Every TLU connected to every input = fully connected layer or dense layer
\(\rightarrow\) backpropagation algorithm (see after)
ANN with deep stack of hidden layers = deep neural network
Famous optimization algorithm - gradient descent (iterative process)
TensorFlow Playground
Large Language Models (LLMs)
LLMs, what’s all the fuss about?
King - Man + Women = Queen
black dog
Examples and best practices
Non exhaustive list
with NotebookLM, powered by Gemini 1.5
Amazingly fast.